Methods for measurement of air pollution. Determination of sulphur dioxide

1963 ◽  
Keyword(s):  
Air Pollution ◽  
Sulphur Dioxide

scholarly journals The lichen Parmelia physodes (L.) Ach. as indicator for determination of the degree of atmospheric air pollution in the area contaminated by flourine and sulphur dioxide emission

2015 ◽  
Vol 47 (1–2) ◽  
pp. 25-40 ◽  
Author(s):  
M. Świeboda ◽  
A. Kalemba
Keyword(s):  
Air Pollution ◽  
Power Plant ◽  
Electric Power ◽  
Sulphur Dioxide ◽  
Sulphur Content ◽  
Electric Power Plant ◽  
Atmospheric Air ◽  
Sulphur Dioxide Emission

On the area involved in the influence of conteminations emitted by the aluminium works and electric power plant, the degree of atmospheric air pollution was evaluated on the basis of the behaviour of healthy thallus of the lichen <i>Parmelia physodes</i>, analysis of fluorine and sulphur content in this thallus and in the bark substrate and the F and SO<sub>2</sub> concentrations in the air.

scholarly journals Modelling and Multi-Objective Optimization of the Sulphur Dioxide Oxidation Process

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 1072
Author(s):  
Mohammad Reza Zaker ◽  
Clémence Fauteux-Lefebvre ◽  
Jules Thibault
Keyword(s):  
Sulphuric Acid ◽  
Sulphur Dioxide ◽  
Variable Number ◽  
Inlet Temperature ◽  
Multi Objective Optimization ◽  
Absorption Column ◽  
Maximum Reaction Rate ◽  
Multi Objective ◽  
Maximum Reaction

Sulphuric acid (H2SO4) is one of the most produced chemicals in the world. The critical step of the sulphuric acid production is the oxidation of sulphur dioxide (SO2) to sulphur trioxide (SO3) which takes place in a multi catalytic bed reactor. In this study, a representative kinetic rate equation was rigorously selected to develop a mathematical model to perform the multi-objective optimization (MOO) of the reactor. The objectives of the MOO were the SO2 conversion, SO3 productivity, and catalyst weight, whereas the decisions variables were the inlet temperature and the length of each catalytic bed. MOO studies were performed for various design scenarios involving a variable number of catalytic beds and different reactor configurations. The MOO process was mainly comprised of two steps: (1) the determination of Pareto domain via the determination a large number of non-dominated solutions, and (2) the ranking of the Pareto-optimal solutions based on preferences of a decision maker. Results show that a reactor comprised of four catalytic beds with an intermediate absorption column provides higher SO2 conversion, marginally superior to four catalytic beds without an intermediate SO3 absorption column. Both scenarios are close to the ideal optimum, where the reactor temperature would be adjusted to always be at the maximum reaction rate. Results clearly highlight the compromise existing between conversion, productivity and catalyst weight.

Continuous-flow chemiluminescence determination of sulphite and sulphur dioxide

The Analyst ◽  
1988 ◽  
Vol 113 (4) ◽  
pp. 603 ◽  
Author(s):  
Ioanna I. Koukli ◽  
Evangelos G. Sarantonis ◽  
Antony C. Calokerinos
Keyword(s):  
Sulphur Dioxide ◽  
Continuous Flow

Quantitative estimation of the effect of noxious substances in atmosphere air on the sickness rate of children

1997 ◽  
Vol 78 (5) ◽  
pp. 388-390
Author(s):  
A. B. Galyamov
Keyword(s):  
Environmental Factors ◽  
Sulphur Dioxide ◽  
Quantitative Estimation ◽  
Anthropogenic Load ◽  
Sickness Rate ◽  
Quantitative Characteristics ◽  
The City ◽  
Noxious Substances

The sikness rate of children living in the territories of the city with various levels of anthropogenic load is studied. The informativity of the multifactor dispersed analysis for determination of quantitative characteristics of the effect of environmental factors on the population sickness rate is noted. The effect of six inassociated factors (dust, sulphur dioxide etc.) on the sickness rate of children aged 4 to 7 is studied by this method.

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